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Finding the Fourth Proportional to 17,856.27, 26,789.64 and 7,993.35

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Solution

The fourth proportional to 17,856.27, 26,789.64 and 7,993.35 is: 11,992.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,856.27 : 26,789.64 = 7,993.35 : x
  2. Step 2: Convert to fraction form
    17,856.27/26,789.64 = 7,993.35/x
  3. Step 3: Cross multiply
    17,856.27x = 26,789.64 × 7,993.35
  4. Step 4: Simplify right side
    17,856.27x = 214,138,968.89
  5. Step 5: Solve for x
    x = 214,138,968.89/17,856.27
  6. Step 6: Final answer
    x = 11,992.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.